impassible, impossible, immobile, improper, immodest, impersonal...
impossible
"Im" is a common prefix in itself, you don't add a prefix to a prefix.
The antonym for "perfect" by adding a prefix is "imperfect." The prefix "im-" indicates negation, transforming the meaning to suggest something that is not perfect or has flaws. This term is often used to describe things that fall short of an ideal standard.
Immature
I am an English scholar. I discovered that the word unpossible does NOT exist. I studied the English language long and hard to find this answer. Once again, the word unpossible does not exist due to it's improper prefix of un-. The correct word is impossible, using the prefix im-.
Words with the prefix -im:immaterialimmatureimmobileimmortalimpartialimperfectimpossibleimpracticalimproperWords with the prefix -in:inaccurateinactiveincalculableincapableincapacitateinconceivableindescribableindiscriminateindivisibleineffectiveingrowninvisibleinvoluntary
immaculateimmatureimmerseimmobileimmoralimpactimpanelimpairimpatientimpeachimperfectimpersonateimplantimplodeimportimposeimpositionimpoundimpracticalimpreciseimpregnateimpressimpressionimpulseimpulsionimpromptu
Some words with "im" as a prefix followed by "b" include imbibe, imbue, and imbed.
Immaterial, immature, immeasurable, immodest, immoral and immovable begin with IM. They mean not.
Impolite has an prefix. The word im is the prefix to polite.
There are too many to name. Some are impossible, import, and impregnable.
impossible
Some prefixes that start with "im-" include "impossible," "imperfect," and "immature." These prefixes typically indicate negation or reversal of the word following them.
"Im" is a common prefix in itself, you don't add a prefix to a prefix.
You can use "im" as a prefix to indicate negation or lack of something, such as in words like "impossible" or "imperfect." It alters the meaning of the base word that follows it.
The prefix for immigrant is "im-".
"not."